CN116666038A - Device for controlling magnetizing current of transformer - Google Patents
Device for controlling magnetizing current of transformer Download PDFInfo
- Publication number
- CN116666038A CN116666038A CN202310948780.1A CN202310948780A CN116666038A CN 116666038 A CN116666038 A CN 116666038A CN 202310948780 A CN202310948780 A CN 202310948780A CN 116666038 A CN116666038 A CN 116666038A
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- conveyor belt
- suspension
- transformer
- magnetizing current
- test piece
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- 239000000725 suspension Substances 0.000 claims abstract description 38
- 239000000523 sample Substances 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 230000000903 blocking effect Effects 0.000 claims description 26
- 229920001971 elastomer Polymers 0.000 claims description 16
- 238000003466 welding Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 2
- 239000006247 magnetic powder Substances 0.000 abstract description 14
- 230000005415 magnetization Effects 0.000 abstract description 9
- 238000001514 detection method Methods 0.000 abstract description 8
- 238000004220 aggregation Methods 0.000 abstract description 5
- 230000002776 aggregation Effects 0.000 abstract description 5
- 230000000149 penetrating effect Effects 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000001179 sorption measurement Methods 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000005059 dormancy Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F13/00—Apparatus or processes for magnetising or demagnetising
- H01F13/003—Methods and devices for magnetising permanent magnets
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/83—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
- G01N27/84—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields by applying magnetic powder or magnetic ink
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/22—Contacts for co-operating by abutting
- H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
- H01R13/2407—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
Landscapes
- Power Engineering (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Electrochemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The invention discloses a magnetizing current device of a control transformer, which belongs to the field of control transformers and comprises: the upper surface of the conveyor belt is provided with a die assembly, and both sides of the upper surface of the conveyor belt are provided with calibration mechanisms; the suspension frame is of an inverted concave structure, and two ends of the suspension frame are fixedly connected to two sides of the conveyor belt respectively; the upper end of the electric telescopic rod is fixedly connected to the lower wall of the suspension, and the output end of the electric telescopic rod faces the belt of the conveyor belt vertically; the upper surface of the insulating plate is adhered to the output end of the electric telescopic rod; the root parts of the two electric connection spring pins are respectively and fixedly connected to the lower surfaces of the two ends of the insulating plate in a penetrating way, and are provided with an electrifying assembly; the temperature probe can realize that the magnetization approximation of the test piece is maximized, the performance of the test piece for absorbing magnetic powder is strong, the aggregation of the magnetic powder on the surface is obvious, and the follow-up flaw detection observation is convenient.
Description
Technical Field
The invention relates to the field of control transformers, in particular to a magnetizing current device of a control transformer.
Background
The control transformer is widely used, electric accidents frequently occur in the peak period of electricity consumption in recent years, particularly, a transformer with mechanical damage inside is extremely easy to generate electric arcs after being electrified, the temperature is severely increased, and the transformer is burnt or burned out to cause fire, so that the transformer is detected completely during production;
when the existing control transformer detects the flaw, the existing control transformer is mainly divided into: 1. magnetizing method by using an external magnetic field: when a magnetic field is applied, magnetic powder is poured on a test piece, and then flaw detection is carried out; 2. current direct magnetization method: directly electrifying and magnetizing a test piece, then applying magnetic powder or magnetic suspension, and then carrying out flaw detection; 3. residual magnetization method: magnetizing the test piece, canceling the external magnetic field, pouring the test piece into the magnetic suspension (or immersing the test piece in the magnetic suspension) with a certain residual magnetic induction intensity, and observing after a few seconds;
the control transformer has the advantages of high electrifying magnetization speed, less equipment, small occupied area of production line and favour of families of large control transformers, but the control transformer iron core is easy to saturate, loss is increased, temperature rise is caused, the manufacturer is electrified for a certain time to cut off power, the temperature rise is avoided, the magnetization degree is lower, the magnetic powder adsorption performance is weaker, the magnetic powder aggregation on the surface is not obvious, and the follow-up flaw detection and observation are inconvenient.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a device for controlling the magnetizing current of a transformer, which can realize the maximization of the magnetizing approximation of a test piece, has strong magnetic powder adsorption performance of the test piece and obvious magnetic powder aggregation on the surface, and is convenient for subsequent flaw detection and observation.
2. Technical proposal
In order to solve the problems, the invention adopts the following technical scheme.
A device for controlling magnetizing current of a transformer, comprising:
the upper surface of the conveyor belt is provided with a die assembly, and both sides of the upper surface of the conveyor belt are provided with calibration mechanisms;
the structure of the suspension is in an inverted concave shape, and two ends of the suspension are respectively and fixedly connected to two sides of the conveyor belt;
the upper end of the electric telescopic rod is fixedly connected to the lower wall of the suspension, and the output end of the electric telescopic rod faces the belt of the conveyor belt vertically;
the upper surface of the insulating plate is adhered to the output end of the electric telescopic rod;
the root parts of the two electric connection spring pins respectively penetrate through the lower surfaces of the two ends of the insulating plate and are fixedly connected with the lower surfaces of the two ends of the insulating plate, and an electrifying assembly is arranged on the electric connection spring pins;
and one side of the temperature probe is fixedly connected to one side of the insulating plate, which is close to the discharging end of the conveyor belt.
Further, the flange plates are welded on two sides of the inside of the suspension, the flange plates are of porous plate structures, an air pump is fixedly installed on one side, close to each other, of each flange plate, a high-pressure air outlet nozzle is arranged at the output end of the air pump, and the high-pressure air outlet nozzle can blow out a needle head of a compressed air flow cleaning electricity-connection spring needle.
Further, the mold assembly includes:
the bottom plates are arranged on the upper surface of the conveyor belt;
one end of each of the four stop rods is welded to four corners of the upper surface of the bottom plate respectively, and the four corners of the transformer are controlled from clamping;
and one side of the rubber pad is adhered to the outer side of the stop lever.
Further, both sides of the conveyor belt are fixedly provided with brake motors, the output ends of the two brake motors are beyond the belt of the conveyor belt, a blocking plate is welded, and a plurality of balls are rotatably arranged on one side, close to the suspension, of the blocking plate.
Further, the calibration mechanism includes:
the horizontal cylinder is horizontally arranged on one side of the upper surface of the conveyor belt, and the output end of the horizontal cylinder faces the belt of the conveyor belt;
one side of the rotating seat is connected with the output end of the horizontal cylinder;
the two rollers are respectively rotatably arranged on the two rotating seats.
Further, through being provided with flexible post swing joint between one side of rotating the seat and the output of horizontal cylinder, buffer spring has been cup jointed in the outside of flexible post.
Further, the energizing assembly includes:
the direct-current power supply is used for transmitting power to the root parts of the two power-on spring pins;
the two power lines are respectively assembled at the output port of the direct current power supply;
and the protection resistor is assembled on one power line, generates a load when being electrified and is used for protecting the direct current power supply.
Further, one side welding of suspension upper end has a plurality of couples, two the joint has the fastener between the outside of power cord, one side welding of fastener has the rubber band, one end that the rubber band kept away from the fastener welds in one side of suspension.
Further, a display screen is fixedly installed on the suspension, a code scanning gun electrically connected with the display screen is fixedly installed on the edge of one end of the suspension, and a warning lamp is fixedly installed on the upper surface of the display screen.
Further, the number of the conveyor belts is two, and a gap is reserved between the blocking plates.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) When the device works, a control transformer test piece is placed in a die assembly, intermittently driven to the lower part of a suspension by a driving belt, then righted from two sides, so that a binding post of the test piece is vertically aligned with an electric spring needle, an electric telescopic rod is controlled to drive needle heads of the two electric spring needles to respectively abut against two binding posts of a secondary coil N2 of the test piece, and the electric assembly is used for supplying direct current to the coil N2, so that an iron core is magnetized, the iron core is saturated, loss is increased, temperature rise is caused, a temperature rise signal is detected through a temperature probe, the electric spring needle is separated from the binding post, magnetization approximation of the test piece is maximized, the test piece is powered off in time after the temperature rise, the magnetic powder adsorption performance of the test piece is strong, the magnetic powder aggregation on the surface is obvious, and the subsequent flaw detection observation is convenient.
(2) When the device works, the two brake motors are started by the external controller, the two blocking plates are rotated in opposite directions, the two blocking plates are folded until being flush, limiting is performed when the device contacts the die, the test piece is conveniently abutted against the spring needle and is righted, the test piece is prevented from being skewed, the die is supported by the balls, sliding friction is facilitated relative to the two blocking plates when the die is displaced, and the friction degree is small.
(3) When the two blocking plates are folded, the two horizontal cylinders are started to push the two rotating seats to approach, the four rollers are driven to respectively abut against the die from two sides, the die is centered or reaches a specified direction, the direction is calibrated, the binding post of the test piece can be opposite to the needle head of the electric spring needle, the position of the test piece is not required to be manually calibrated, and then the horizontal cylinders are controlled to drive the rollers to leave the die.
(4) When the device works, a certain number of test pieces are respectively placed on the two conveyor belts, and magnetization is alternately carried out, so that the direct current power supply is alternately electrified for the test pieces on the two conveyor belts, the dormancy time of the direct current power supply is reduced, the direct current power supply is fully utilized, and the productivity is enlarged.
Drawings
FIG. 1 is a schematic diagram of a front view of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic top view of the present invention;
FIG. 4 is an enlarged schematic view of the structure of FIG. 1A according to the present invention;
FIG. 5 is an enlarged schematic view of the structure of FIG. 2B according to the present invention;
FIG. 6 is an enlarged schematic view of the structure of FIG. 2C in accordance with the present invention;
FIG. 7 is an enlarged schematic view of the structure of FIG. 2D according to the present invention;
FIG. 8 is an enlarged schematic view of the structure of FIG. 3E according to the present invention;
FIG. 9 is a flowchart of the operation of the test piece of the present invention.
The reference numerals in the figures illustrate:
1. a conveyor belt; 2. a suspension; 3. an electric telescopic rod; 4. an insulating plate; 5. a spring needle is connected; 6. a temperature probe; 7. a flange plate; 8. an air pump; 9. a high-pressure air outlet nozzle; 10. a bottom plate; 11. a stop lever; 12. a rubber pad; 13. a brake motor; 14. a blocking plate; 15. a ball; 16. a horizontal cylinder; 17. a rotating seat; 18. a roller; 19. a telescopic column; 20. a buffer spring; 21. a direct current power supply; 22. a power line; 23. a protection resistor; 24. a hook; 25. a wire clamp; 26. an elastic band; 27. a display screen; 28. a code scanning gun; 29. a warning light.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present invention are within the protection scope of the present invention.
Examples:
referring to fig. 1-9, an apparatus for controlling magnetizing current of a transformer, comprising:
the device comprises a conveyor belt 1, wherein a rubber belt of the conveyor belt 1 is driven to rotate through a driving element, a die assembly for placing a control transformer test piece is arranged on the upper surface of the conveyor belt 1, a working flow chart of the test piece is shown in the following figure 9, and calibration mechanisms are arranged on two sides of the upper surface of the conveyor belt 1;
the suspension 2 is in an inverted concave structure, and two ends of the suspension 2 are fixedly connected to two sides of the conveyor belt 1 through bolts respectively;
the upper end of the electric telescopic rod 3 is fixedly connected to the lower wall of the suspension 2, the output end of the electric telescopic rod 3 faces the belt of the conveyor belt 1 vertically, the model of the electric telescopic rod 3 is JC35DS, and the electric telescopic rod has self-locking capability and can work under the condition of 24 VDC;
the upper surface of the insulating plate 4 is adhered to the output end of the electric telescopic rod 3, the insulating plate is made of ceramic, and the edge passivation treatment can reduce the electrification of the surface tip;
the root parts of the two electric connection spring pins 5 respectively penetrate through the lower surfaces of the two ends of the insulating plate 4 and are fixedly connected with the lower surfaces of the two ends of the insulating plate, and an electrifying assembly is arranged, and the type of the electric connection spring pin 5 is HC580-H520-7.1N and can bear large current about 100A;
the temperature probe 6, one side of the temperature probe 6 is fixedly connected to one side of the insulating board 4 close to the blanking end of the conveyor belt 1, and the model of the temperature probe 6 can be any one of IRTP30OL, IRTP300MS, IRTP300LS, IRTP500LS, IRTP800LS and IRTP1000LS infrared temperature sensors.
When the invention works, a control transformer test piece is placed into a die assembly, the control transformer test piece is intermittently driven to the lower part of a suspension 2 by a conveyor belt 1, a calibration mechanism is controlled to be righted from two sides, a binding post of the test piece is vertically aligned with an electric spring needle 5, an electric telescopic rod 3 is controlled to push an insulating plate 4 downwards, needle heads of the two electric spring needles 5 are driven to respectively abut against two binding posts of a secondary coil N2 of the test piece, a temperature probe 6 is close to the test piece, a direct current is introduced to the coil N2 by the electrifying assembly, so that an iron core is magnetized, the iron core is saturated, loss is increased, temperature rise is caused, a temperature rise signal is detected by the temperature probe 6, the insulating plate 4 is lifted, the electric spring needle 5 is separated from the binding post, magnetization approximation of the test piece is maximized, the test piece is powered off in time after the temperature rise, the performance of adsorbing magnetic powder is strong, magnetic powder on the surface is obvious, and subsequent flaw detection is convenient.
Referring to fig. 3 and 8, the mold assembly includes:
the bottom plates 10 are arranged on the upper surface of the belt of the conveyor belt 1, the bottom plates 10 are formed by gluing lower-layer ceramics, middle-layer wood plates and upper-layer acrylic, the bottom plates have good insulating property, are easy to take and place, are convenient to obtain materials, and can be used for producing the bottom plates 10 with different specifications in batches;
one end of each of the four stop rods 11 is welded to four corners of the upper surface of the bottom plate 10, and the four corners of the transformer are clamped and controlled respectively;
rubber pad 12, one side of rubber pad 12 is adhered to the outside of pin 11.
When loading the test piece, the bottom plate 10 is horizontally placed on the upper surface of the belt of the conveyor belt 1, the four stop rods 11 face upwards to form a die, the test piece is loaded, the rubber pad 12 is extruded to clamp, and the dies with different sizes can be replaced and used for clamping the test pieces with different sizes.
Referring to fig. 1 and 4, flange plates 7 are welded on two sides of the inside of the suspension 2, the flange plates 7 are of porous plate structures, an air pump 8 is fixedly mounted on one side, close to each other, of each flange plate 7 through mounting bolts, a high-pressure air outlet nozzle 9 is mounted at the output end of the air pump 8, the high-pressure air outlet nozzle 9 can blow out the needle head of a compressed air flow cleaning electric spring needle 5, when the needle head of the electric spring needle 5 approaches a binding post, the air pump 8 is started, the high-pressure air outlet nozzle 9 blows compressed air flow towards the needle head, dust and impurities on the needle head and the binding post are cleaned, the contact surface of the needle head and the binding post is clean, the direct-current conductivity is conveniently improved, and the air pump 8 is mounted at positions of different heights on the flange plates 7, so that the high-pressure air outlet nozzle 9 can be aligned with binding posts of different test pieces in size, and the applicability is high.
Referring to fig. 1 and 3, brake motors 13 are fixedly installed on two sides of a conveyor belt 1, the types of the brake motors 13 are YEJ-6314, multiple power supplies can be applied, output ends of the two brake motors 13 are all over a belt of the conveyor belt 1, blocking plates 14 are welded, a plurality of balls 15 are rotatably installed on one side, close to a suspension 2, of each blocking plate 14, the balls 15 extend out of the inside of each blocking plate 14, when the device is in operation, the two brake motors 13 are started through an external controller, the two blocking plates 14 are rotated in opposite directions, the two blocking plates 14 are folded until the two blocking plates are flush, limiting is performed when the device contacts a die, a test piece is conveniently abutted against an electric spring needle 5, the die is righted, the test piece is prevented from being skewed, the die is supported through the balls 15, sliding friction between the two blocking plates 14 is convenient when the die is displaced, and the friction degree is small.
Referring to fig. 4 and 5, the calibration mechanism includes:
a horizontal cylinder 16, wherein the horizontal cylinder 16 is horizontally arranged on one side of the upper surface of the conveyor belt 1, and the output end faces the belt of the conveyor belt 1;
a rotating seat 17, wherein one side of the rotating seat 17 is connected with the output end of the horizontal cylinder 16;
the rollers 18, the two rollers 18 are respectively installed on the two rotating seats 17 in a rotating way, the rollers 18 are made of plastic, and the magnetic field on the test piece is not interfered.
When the two blocking plates 14 are folded, the two horizontal cylinders 16 are started to push the two rotating seats 17 to be close, the four rollers 18 are driven to respectively abut against the die from two sides, the die is centered to move to a designated direction, the direction is calibrated, the binding post of the test piece can be opposite to the needle head of the electric spring needle 5, the position of the test piece is not required to be manually calibrated, and then the horizontal cylinders 16 are controlled to drive the rollers 18 to leave the die.
Referring to fig. 2, 4 and 5, a telescopic column 19 is movably connected between one side of the rotating seat 17 and the output end of the horizontal cylinder 16, a buffer spring 20 is sleeved on the outer side of the telescopic column 19, the telescopic column 19 and the buffer spring 20 are made of plastic steel, and have insulation characteristics, when the calibrating mechanism contacts with the die, the rotating seat 17 compresses the telescopic column 19 and the buffer spring 20 to elastically collide, buffer is performed, the load of the horizontal cylinder 16 is removed, and a test piece in the die is prevented from being excessively extruded.
Referring to fig. 2 and 6, the energizing assembly includes:
the direct current power supply 21, the direct current power supply 21 is used for transmitting power to the root parts of the two power-receiving spring pins 5, the model of the direct current power supply 21 is SP-3U/6U, the Constant Voltage (CV), the Constant Current (CC) and the Constant Power (CP) modes are automatically switched, the CC & CV priority is optional, and the direct current power supply 21 has the protection functions of overvoltage, overcurrent, overpower, overtemperature, short circuit and the like, and specific working parameters are shown in the following table 1;
a power line 22, the two power lines 22 being respectively mounted at the output ports of the dc power supply 21;
the protection resistor 23, the protection resistor 23 is assembled on a power line 22, and generates a load when energized, for protecting the direct current power supply 21.
TABLE 1
When the secondary coil N2 is electrified, a direct current power supply 21 is turned on, a specified output voltage is selected and is transmitted to the secondary coil N2 along a protection resistor 23 and a power line 22, so that the iron core is magnetized.
Referring to fig. 5 and 7, a plurality of hooks 24 are welded on one side of the upper end of the suspension 2, a wire clamp 25 is clamped between the outer sides of two power wires 22, a rubber band 26 is welded on one side of the wire clamp 25, one end of the rubber band 26, which is far away from the wire clamp 25, is welded on one side of the suspension 2, the power wires 22 are supported through the wire clamp 25, the power wires 22 are suspended above a test piece conveniently, when the electric connection spring needle 5 descends, the wire clamp 25 and the rubber band 26 are pulled, the rubber band 26 stretches and elastic potential energy increases, and when the electric connection spring needle 5 ascends, the power wires 22 are pulled through the rubber band 26 to be retracted onto the wire clamp 25, and the test piece is prevented from being blocked by falling.
Referring to fig. 1 and 2, a display screen 27 is fixedly installed on a suspension 2, a code scanning gun 28 electrically connected with the display screen 27 is fixedly installed at the edge of one end of the suspension 2, a warning lamp 29 is fixedly installed on the upper surface of the display screen 27, when the power is on, two-dimensional codes on test pieces are shot through the code scanning gun 28, test piece specification information and charging time are displayed on the display screen 27, the charging time of each test piece is drawn into a curve, the test piece with large deviation degree of the charging time appears, and the warning lamp 29 is started to warn.
Referring to fig. 1, 2 and 3, the number of the conveyor belts 1 is two, a gap is reserved between the blocking plates 14, so that mutual collision is avoided, and when the invention works, a certain number of test pieces are respectively placed on the two conveyor belts 1 and magnetized alternately, so that the direct current power supply 21 alternately energizes the test pieces on the two conveyor belts 1, the dormancy time of the direct current power supply 21 is reduced, the direct current power supply 21 is fully utilized, and the productivity is enlarged.
Working principle: when the invention works, a control transformer test piece is put into a mould assembly, a certain number of test pieces are respectively put on the two conveyor belts 1, the two conveyor belts 1 are intermittently driven to the lower part of the suspension 2, the two brake motors 13 are started by the external controller, the two blocking plates 14 are rotated in opposite directions, the two blocking plates 14 are folded until being flush, and when the two blocking plates are contacted with the mould, the two blocking plates are limited, the test piece is conveniently and positively abutted against the electric spring needle 5, the mould is righted, the test piece is prevented from being skewed, the mould is supported by the balls 15, the sliding friction of the two blocking plates 14 is convenient when the mould is displaced, and the friction degree is small.
When the two blocking plates 14 are folded, the calibrating mechanism is controlled to straighten from two sides, the two horizontal air cylinders 16 are started, the two rotating seats 17 are pushed to approach, the four rollers 18 are driven to abut against the dies from two sides respectively, the dies are centered to move to a designated direction, the alignment direction is carried out, the binding posts of the test piece are vertically aligned with the electric spring pins 5, then the horizontal air cylinders 16 are controlled to drive the rollers 18 to leave the dies, the electric telescopic rods 3 are controlled to push the insulating plates 4 downwards, the needle heads of the two electric spring pins 5 are driven to abut against the two binding posts of the secondary coil N2 of the test piece respectively, the temperature probes 6 are close to the test piece, direct current is introduced to the coil N2 by the power-on assembly, so that the iron cores are magnetized, the iron cores are saturated, loss is increased, temperature rise is caused, the temperature rise is detected by the temperature rise signals of the temperature probes 6, the insulating plates 4 are lifted again, the electric spring pins 5 are separated from the binding posts, magnetization of the test piece is maximized, after the temperature rise is timely power off, the magnetic powder adsorption performance of the test piece is strong, the magnetic powder aggregation on the surface is obvious, subsequent flaw detection is convenient, the direct current power 21 is alternately electrified on the two conveyor belts 1, the test piece 21 is powered on, the time of the test piece is shortened, the dormant power 21 is fully utilized, and the capacity of the power 21 is fully utilized.
The above description is only of the preferred embodiments of the present invention; the scope of the invention is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present invention, and the technical solution and the improvement thereof are all covered by the protection scope of the present invention.
Claims (10)
1. A device for controlling magnetizing current of a transformer, comprising:
the device comprises a conveyor belt (1), wherein the upper surface of the conveyor belt (1) is provided with a die assembly, and the two sides of the upper surface of the conveyor belt (1) are provided with calibration mechanisms;
the suspension (2) is in an inverted concave structure, and two ends of the suspension (2) are fixedly connected to two sides of the conveyor belt (1) respectively;
the upper end of the electric telescopic rod (3) is fixedly connected to the lower wall of the suspension (2), and the output end of the electric telescopic rod vertically faces to the belt of the conveyor belt (1);
the upper surface of the insulating plate (4) is adhered to the output end of the electric telescopic rod (3);
the root parts of the two electric connection spring pins (5) respectively penetrate through the lower surfaces of the two ends of the insulating plate (4) and are fixedly connected with the lower surfaces of the two ends of the insulating plate, and an electrifying assembly is arranged on the electric connection spring pins;
and one side of the temperature probe (6) is fixedly connected with one side of the insulating plate (4) close to the discharging end of the conveyor belt (1).
2. A device for controlling magnetizing current of a transformer as claimed in claim 1, wherein: the utility model discloses a high-pressure air outlet valve, including suspension (2) and air pump, flange board (7) have all been welded to the inside both sides of suspension (2), flange board (7) are porous plate structure, two the equal fixed mounting in one side that flange board (7) are close to each other has air pump (8), the output of air pump (8) is equipped with high-pressure air outlet valve (9), high-pressure air outlet valve (9) can blow out the syringe needle of clean electric spring needle (5) that connects of compressed air current.
3. A device for controlling magnetizing current of a transformer as claimed in claim 1, wherein: the mold assembly includes:
the bottom plates (10) are arranged on the upper surfaces of the belts of the conveyor belt (1);
one ends of the four stop rods (11) are welded to four corners of the upper surface of the bottom plate (10) respectively, and the four corners of the transformer are clamped and controlled respectively;
and one side of the rubber pad (12) is adhered to the outer side of the stop lever (11).
4. A device for controlling magnetizing current of a transformer as claimed in claim 1, wherein: both sides of the conveyor belt (1) are fixedly provided with brake motors (13), the output ends of the two brake motors (13) are respectively over the belt of the conveyor belt (1), a blocking plate (14) is welded, and a plurality of balls (15) are rotatably arranged on one side, close to the suspension (2), of the blocking plate (14).
5. A device for controlling magnetizing current of a transformer as claimed in claim 1, wherein: the calibration mechanism includes:
the horizontal air cylinder (16), the horizontal air cylinder (16) is horizontally arranged on one side of the upper surface of the conveyor belt (1), and the output end faces the belt of the conveyor belt (1);
a rotating seat (17), wherein one side of the rotating seat (17) is connected with the output end of the horizontal cylinder (16);
the rollers (18), two said rollers (18) are installed on two rotating seats (17) rotatably respectively.
6. A device for controlling magnetizing current of a transformer as claimed in claim 5, wherein: one side of the rotating seat (17) is movably connected with the output end of the horizontal cylinder (16) through a telescopic column (19), and a buffer spring (20) is sleeved on the outer side of the telescopic column (19).
7. A device for controlling magnetizing current of a transformer as claimed in claim 1, wherein: the energizing assembly includes:
the direct-current power supply (21) is used for transmitting power to the root parts of the two power-receiving spring pins (5);
the power lines (22) are respectively assembled at the output ports of the direct current power supply (21);
and a protection resistor (23), wherein the protection resistor (23) is assembled on a power line (22), and generates a load when being electrified, so as to protect the direct current power supply (21).
8. A device for controlling magnetizing current of a transformer as claimed in claim 7, wherein: one side welding of suspension (2) upper end has a plurality of couples (24), two joint has fastener (25) between the outside of power cord (22), one side welding of fastener (25) has rubber band (26), one end welding in one side of suspension (2) of the one end of keeping away from fastener (25) of rubber band (26).
9. A device for controlling magnetizing current of a transformer as claimed in claim 1, wherein: the display screen (27) is fixedly mounted on the suspension (2), the code scanning gun (28) electrically connected with the display screen (27) is fixedly mounted on the edge of one end of the suspension (2), and the warning lamp (29) is fixedly mounted on the upper surface of the display screen (27).
10. A device for controlling magnetizing current of a transformer as claimed in claim 4, wherein: the number of the conveyor belts (1) is two, and a gap is reserved between the blocking plates (14).
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| CN202310948780.1A CN116666038B (en) | 2023-07-31 | 2023-07-31 | Device for controlling magnetizing current of transformer |
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| CN202310948780.1A CN116666038B (en) | 2023-07-31 | 2023-07-31 | Device for controlling magnetizing current of transformer |
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| CN116666038A true CN116666038A (en) | 2023-08-29 |
| CN116666038B CN116666038B (en) | 2023-09-26 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008122085A (en) * | 2006-11-08 | 2008-05-29 | Anritsu Sanki System Co Ltd | Metal detecting device |
| CN210036970U (en) * | 2019-07-29 | 2020-02-07 | 安徽电气工程职业技术学院 | Transformer operation fault alarm device for infrared temperature measurement and insulator ultrasonic flaw detection |
| CN210925642U (en) * | 2019-12-18 | 2020-07-03 | 射阳县利德探伤设备制造有限公司 | Demagnetizer with detection function |
| CN111505112A (en) * | 2020-06-17 | 2020-08-07 | 北京磁通设备制造有限公司 | Side rolling resistant torsion bar magnetic powder flaw detector for passenger train and flaw detection method |
| CN116203122A (en) * | 2023-05-06 | 2023-06-02 | 成都图南电子有限公司 | Magnet structure defect detection device |
-
2023
- 2023-07-31 CN CN202310948780.1A patent/CN116666038B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008122085A (en) * | 2006-11-08 | 2008-05-29 | Anritsu Sanki System Co Ltd | Metal detecting device |
| CN210036970U (en) * | 2019-07-29 | 2020-02-07 | 安徽电气工程职业技术学院 | Transformer operation fault alarm device for infrared temperature measurement and insulator ultrasonic flaw detection |
| CN210925642U (en) * | 2019-12-18 | 2020-07-03 | 射阳县利德探伤设备制造有限公司 | Demagnetizer with detection function |
| CN111505112A (en) * | 2020-06-17 | 2020-08-07 | 北京磁通设备制造有限公司 | Side rolling resistant torsion bar magnetic powder flaw detector for passenger train and flaw detection method |
| CN116203122A (en) * | 2023-05-06 | 2023-06-02 | 成都图南电子有限公司 | Magnet structure defect detection device |
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| CN116666038B (en) | 2023-09-26 |
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Denomination of invention: A device for controlling transformer magnetization current Granted publication date: 20230926 Pledgee: Nanjing Zidong sub branch of Bank of Nanjing Co.,Ltd. Pledgor: Jiangsu Anhe Electric Energy Technology Co.,Ltd. Registration number: Y2024980004572 |
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